openssl_public_decrypt
(PHP 4 >= 4.0.6, PHP 5)
openssl_public_decrypt — Decrypts data with public key
說明
bool openssl_public_decrypt
( string $data
, string &$decrypted
, mixed $key
[, int $padding
] )
openssl_public_decrypt() decrypts data that was previous encrypted via openssl_private_encrypt() and stores the result into decrypted .
You can use this function e.g. to check if the message was written by the owner of the private key.
參數
- data
-
- decrypted
-
- key
-
key must be the public key corresponding that was used to encrypt the data.
- padding
-
padding defaults to OPENSSL_PKCS1_PADDING, but can also be OPENSSL_NO_PADDING.
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。